New heap can be equal to heap limit for last chunk

deepikabhavnani · deepikabhavnani · commit 387e4ca9f47b · 2019-02-21T17:20:49.000-06:00
diff --git a/platform/mbed_retarget.cpp b/platform/mbed_retarget.cpp
@@ -1249,7 +1249,7 @@ extern "C" WEAK caddr_t _sbrk(int incr)
     uint32_t new_heap = heap + incr;
 
     /* __HeapLimit is end of heap section */
-    if (new_heap >= (uint32_t) &__HeapLimit) {
+    if (new_heap > (uint32_t) &__HeapLimit) {
         errno = ENOMEM;
         return (caddr_t) -1;
     }

Original file line number	Diff line number	Diff line change
`@@ -1249,7 +1249,7 @@ extern "C" WEAK caddr_t _sbrk(int incr)`
`1249`	`1249`	`uint32_t new_heap = heap + incr;`
`1250`	`1250`
`1251`	`1251`	`/* __HeapLimit is end of heap section */`
`1252`		`- if (new_heap >= (uint32_t) &__HeapLimit) {`
	`1252`	`+ if (new_heap > (uint32_t) &__HeapLimit) {`
`1253`	`1253`	`errno = ENOMEM;`
`1254`	`1254`	`return (caddr_t) -1;`
`1255`	`1255`	`}`